4. Railway switches and signals
  5. Train dispatching
  6. Central signal control

Robert E. Heggestad

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Fixed data transmission system for controlling train movement

Railway switches and signals – Cab signal or train control – Speed-control systems
Patent

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Incremental train control system

Railway switches and signals – Block-signal systems – Automatic
Patent

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Method for advanced communication-based vehicle control

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Railway vehicle
Reexamination Certificate

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Train control system integrating dynamic and fixed data

Railway switches and signals – Train dispatching – Central signal control
Patent

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Profile ID: LFUS-PAI-P-726975

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